用android studio写一个天气预报安卓软件，接入中国天气网获取天气数据，使用阿拉伯数字实时显示温度，提供一个完整的代码，并且可以运行

非常感谢您的提问。以下是一个简单的天气预报安卓应用程序的代码，它使用中国天气网提供的API来获取天气数据，并使用阿拉伯数字实时显示温度。请注意，这只是一个示例代码，您需要根据您的需求进行修改和定制。

MainActivity.java

import androidx.appcompat.app.AppCompatActivity;
import android.os.AsyncTask;
import android.os.Bundle;
import android.view.View;
import android.widget.Button;
import android.widget.EditText;
import android.widget.TextView;
import org.json.JSONException;
import org.json.JSONObject;
import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStreamReader;
import java.net.HttpURLConnection;
import java.net.URL;

public class MainActivity extends AppCompatActivity {

    private EditText cityEditText;
    private Button searchButton;
    private TextView temperatureTextView;

    private static final String API_KEY = "YOUR_API_KEY";
    private static final String API_URL = "http://t.weather.itboy.net/api/weather/city/";

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);

        cityEditText = findViewById(R.id.cityEditText);
        searchButton = findViewById(R.id.searchButton);
        temperatureTextView = findViewById(R.id.temperatureTextView);

        searchButton.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View v) {
                String city = cityEditText.getText().toString();
                if (!city.isEmpty()) {
                    new WeatherTask().execute(city);
                }
            }
        });
    }

    private class WeatherTask extends AsyncTask<String, Void, String> {

        @Override
        protected String doInBackground(String... params) {
            String city = params[0];
            String apiUrl = API_URL + city;
            try {
                URL url = new URL(apiUrl);
                HttpURLConnection connection = (HttpURLConnection) url.openConnection();
                connection.setRequestMethod("GET");
                connection.setConnectTimeout(5000);
                connection.setReadTimeout(5000);
                connection.connect();
                BufferedReader reader = new BufferedReader(new InputStreamReader(connection.getInputStream()));
                StringBuilder response = new StringBuilder();
                String line;
                while ((line = reader.readLine()) != null) {
                    response.append(line);
                }
                reader.close();
                connection.disconnect();
                return response.toString();
            } catch (IOException e) {
                e.printStackTrace();
            }
            return null;
        }

        @Override
        protected void onPostExecute(String result) {
            if (result != null) {
                try {
                    JSONObject jsonObject = new JSONObject(result);
                    JSONObject dataObject = jsonObject.getJSONObject("data");
                    String temperature = dataObject.getString("wendu");
                    temperatureTextView.setText(temperature + "℃");
                } catch (JSONException e) {
                    e.printStackTrace();
                }
            }
        }
    }
}

activity_main.xml

<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:tools="http://schemas.android.com/tools"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    tools:context=".MainActivity">

    <EditText
        android:id="@+id/cityEditText"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:hint="输入城市名称" />

    <Button
        android:id="@+id/searchButton"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_below="@id/cityEditText"
        android:text="搜索" />

    <TextView
        android:id="@+id/temperatureTextView"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:layout_below="@id/searchButton"
        android:textSize="48sp"
        android:textAlignment="center" />

</RelativeLayout>

请注意，您需要将YOUR_API_KEY替换为您在中国天气网注册的API密钥。此外，您还需要在AndroidManifest.xml文件中添加以下权限：

<uses-permission android:name="android.permission.INTERNET" />

希望这可以帮助您开始编写您自己的天气应用程序。